Senescent cells are cells that are unable to reproduce, thus hindering the body’s ability to repair DNA and its disposal process. These cells then linger in the body and produce toxic material, increase inflammation, and accelerate the aging process. According to the scientists at the University of Minnesota Medical School, “senescent immune system cells are potentially among the most dangerous of all senescent cell types in the aging body.” When immune cells become senescent, they “can easily expose a wider range of organs and tissues to inflammation and other damaging factors, unlike more stationary senescent cells such as those in the skin.” Needless to say, understanding senescent immune cells is important in slowing the aging process and protecting our organs from inflammation and damage. While there is more to understand about intervening against senescence, the goal of these scientists is “to target reducing immune system senescence as a potential future intervention to aid healthy aging.” [1]